<template>
    <div class="login-container">
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
            <div class="title-container">
                <h3 class="title">官网后台管理系统</h3>
            </div>

            <el-form-item prop="username">
                <span class="svg-container">
                    <svg-icon icon-class="user" />
                </span>
                <el-input v-model="loginForm.username" placeholder="请输入用户名" name="username" type="text" />
            </el-form-item>

            <el-form-item prop="password">
                <span class="svg-container">
                    <svg-icon icon-class="password" />
                </span>
                <el-input ref="password" v-model="loginForm.password" :type="passwordType" placeholder="请输入密码" name="password" />
                <span class="show-pwd" @click="showPwd">
                    <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
                </span>
            </el-form-item>
            <!-- <el-form-item class="captcha" prop="captchaCode">
                <span class="svg-container">
                    <svg-icon icon-class="user" />
                </span>
                <el-input v-model="loginForm.captchaCode" placeholder="请输入验证码" name="captchaCode" type="text" @keyup.enter.native="handleLogin" />
                <span class="captcha-container" @click="updateCaotcha">
                    <img :src="getCaptcha" />
                </span>
            </el-form-item> -->
            <el-button :loading="loading" type="primary" style="width: 100%; margin-bottom: 30px" @click.native.prevent="handleLogin">登录</el-button>
        </el-form>
    </div>
</template>

<script>
import { getCaptcha } from "@/api";

export default {
    name: "Login",
    data() {
        const validatePassword = (rule, value, callback) => {
            // if (value.length < 6) {
            //     callback(new Error("密码输入错误"));
            // } else {
            //     callback();
            // }
            callback()
        };
        return {
            getCaptcha,
            loginForm: {
                username: "",
                password: "",
                captchaCode: "",
            },
            loginRules: {
                username: [{ required: true, message: "请输入用户名" }],
                password: [{ required: true, validator: validatePassword }],
                // captchaCode: [{ required: true, message: "请输入验证码" }],
            },
            loading: false,
            passwordType: "password",
            redirect: undefined,
        };
    },
    watch: {
        $route: {
            handler: function (route) {
                this.redirect = route.query && route.query.redirect;
            },
            immediate: true,
        },
    },
    methods: {
        showPwd() {
            if (this.passwordType === "password") {
                this.passwordType = "";
            } else {
                this.passwordType = "password";
            }
            this.$nextTick(() => {
                this.$refs.password.focus();
            });
        },
        handleLogin() {
            // this.$router.push({ path: this.redirect || "/" });
            // return;
            this.$refs.loginForm.validate((valid) => {
                if (valid) {
                    this.loading = true;
                    this.$store
                        .dispatch("user/login", this.loginForm)
                        .then(() => {
                            this.$router.push({ path: this.redirect || "/" });
                            this.loading = false;
                        })
                        .catch(() => {
                            this.loading = false;
                            this.updateCaotcha();
                        });
                } else {
                    console.log("error submit!!");
                    return false;
                }
            });
        },
        updateCaotcha() {
            this.getCaptcha = `${getCaptcha}?t=${new Date().valueOf()}`;
        },
    },
};
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
    .login-container .el-input input {
        color: $cursor;
    }
}

/* reset element-ui css */
.login-container {
    .el-input {
        display: inline-block;
        width: 85%;

        input {
            background: transparent;
            border: 0px;
            -webkit-appearance: none;
            border-radius: 0px;
            padding: 12px 5px 12px 15px;
            color: $light_gray;
            caret-color: $cursor;

            &:-webkit-autofill {
                box-shadow: 0 0 0px 1000px $bg inset !important;
                -webkit-text-fill-color: $cursor !important;
            }
        }
    }
    .captcha {
        .el-input {
            width: 60%;
        }
    }
    .el-form-item {
        border: 1px solid rgba(255, 255, 255, 0.1);
        background: rgba(0, 0, 0, 0.1);
        border-radius: 5px;
        color: #454545;
    }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
    min-height: 100%;
    width: 100%;
    background-color: $bg;
    overflow: hidden;

    .login-form {
        position: relative;
        width: 520px;
        max-width: 100%;
        padding: 160px 35px 0;
        margin: 0 auto;
        overflow: hidden;
    }

    .tips {
        font-size: 14px;
        color: #fff;
        margin-bottom: 10px;

        span {
            &:first-of-type {
                margin-right: 16px;
            }
        }
    }

    .svg-container {
        padding: 6px 5px 6px 15px;
        color: $dark_gray;
        vertical-align: middle;
        width: 30px;
        display: inline-block;
    }
    .captcha-container {
        float: right;
        margin-top: 7px;
        width: 120px;
        line-height: 0;
    }
    .title-container {
        position: relative;

        .title {
            font-size: 26px;
            color: $light_gray;
            margin: 0px auto 40px auto;
            text-align: center;
            font-weight: bold;
        }
    }

    .show-pwd {
        position: absolute;
        right: 10px;
        top: 7px;
        font-size: 16px;
        color: $dark_gray;
        cursor: pointer;
        user-select: none;
    }
}
</style>
